<?php

class VocabularyService extends FServiceBase
{    
    /**
    * Get a Vocabulary model given its ID
    * 
    * @param int id Vocabulary ID
    * @return FServiceModel
    */
    public function get($params){
        $model = Vocabulary::model()->findByPk($this->getParam($params, 'id',0));
        if (! $model)
            $this->result->fail(ERROR_INVALID_DATA, Yii::t('Admin.Vocabulary','Invalid ID.'));
        $this->result->processed('model', $model);
        return $this->result;
    }
    
    public function save($params) {
        /**
        * @var CModel
        */
        $model = $this->getModel($params['Vocabulary'],'Vocabulary');
        $this->result->processed('model', $model);
        
        if (! $model->validate())
            $this->result->fail(ERROR_INVALID_DATA, Yii::t('Admin.Vocabulary', 'Submitted data is missing or invalid.'));
        elseif ($this->getParam($params, 'validateOnly',0) == TRUE)
            return $this->result;
        elseif (! $model->save())
            $this->result->fail(ERROR_HANDLING_DB, Yii::t('Admin.Vocabulary','Error while saving submitted data into database.'));
        
        return $this->result;
    }


    public function delete($params) {
        $ids = $this->getParam($params, 'ids', array());
        if ($ids == 0) {
            return $this->result->fail(ERROR_INVALID_DATA, Yii::t('Admin.Vocabulary','Invalid ID.'));
        }
      
        if (!is_array($ids)) $ids = array($ids);
        foreach($ids as $id) {
            $model = Vocabulary::model()->findByPk($id);
            /**
            * TODO: Check related data if this Vocabulary is deletable
            * This can be done in onBeforeDelete or here or in extensions
            *
            if (Related::model()->count("VocabularyId = {$id}") > 0)
                $this->result->fail(ERROR_VIOLATING_BUSINESS_RULES, Yii::t('Admin.Vocabulary',"Cannot delete Vocabulary ID={$id} as it has related class data."));
            else
            */
                try {
                    $model->delete();
                } catch (CDbException $ex) {
                    $this->result->fail(ERROR_HANDLING_DB, $ex->getMessage());
                }
        }
        return $this->result;
    }
    
    public function changeState($params) {
        $ids = $this->getParam($params, 'ids', array());
        $value = $this->getParam($params, 'value', false);
        
        if (count($ids) <= 0)
            return $this->result;
        
        $criteria = new CDbCriteria();
        $criteria->addInCondition('id', $ids);
        $models = Vocabulary::model()->findAll($criteria);
        foreach ($models as $model) {
            /**
            * @var Vocabulary $model
            */
            $model->state = (boolean) $value;
            if (! $model->save(false, array('state')))
                $this->result->fail(ERROR_HANDLING_DB, 'Error while saving submitted data into database.');
        }
        
        return $this->result;
    }
    
    public function findChildren($params)
    {
        $vocabulary = $this->getParam($params, 'id', 0);
        
        $data = array();
        $criteria = new CDbCriteria();
        $criteria->compare('v_id', $vocabulary);
        $criteria->order = 'ordering';
        $result = Term::model()->findAll($criteria);
        if (count($result))
        {
            foreach ($result as $item)
            {
                $data[] = array(
                    'option'=>$item->name,
                    'is_default'=>0,
                    'is_db_live'=>"0",
                    'id'=>$item->id,
                );
            }
        }
        
        return $this->result->processed('data', $data);
    }
}